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BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a conventional electromagnetic
converter, FIG. 2 is a plan view of a diaphragm support of the present invention, FIG. 7 · · · · · · ·
diaphragm. 8, 9 · · · · · · · · · plastic film. 10 ...... first peripheral adhesive island FIG -157- Sho 50875 (2) Figure 2 Figure 3 Tofta. Turtle "\ + \. ♂;S+. '++ Strike i. · C · L '% ● 1 · I 嘩 7?
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibrator
supporting portion of an electromagnetic converter for converting electric vibration into model
vibration. Fig. 1 shows the general structure of the drive part of the conventional non-flat odor
electric discharge EBf vessel, and 1 is a table of cobalt alloy (permendur), iron nickel alloy
(permalloy), etc. The vibrating plate 2 is a support of the vibrating plate 1 and is made of an
elastic thin plate of nickel-nickel alloy. 3 is a permanent magnet, 4 is a coil, 5 is an iron core for
forming a magnetic circuit hair 1-, and the coil 4 is provided around the center ball 6 to form the
main body of the electromagnetic transducer. The vibration & 1 and the support plate 2 are
joined at the center by spot welding, and the ends are bonded with a rubber thread adhesive and
attached with a gap d'2 to the main body. Since the diaphragm 1 vibrates or the support plate 2
is a support of the diaphragm 1 and acts as a damper when the imaging current flows in the coil
4 according to the above configuration, the resonance of the key plate 1 occurs. The frequency is
adjusted by the support plate 2. By the way, this support made of an elastic metal thin plate is
supported by 1i! ! 2) Spear that substitutes 2 with plastic film, and the tension of the film is
adjusted by the tension t-surface of the diaphragm-the film damper which is used for the
resonance-wave number t-11w of the vibrator is used. It is intended to improve the bonding of
the support to the plastic film. In the present invention, an embodiment of the invention will be
described with reference to FIGS. 2 and 3. 7 is a peristaltic plate made of a soft and strong
material of iron cobalt alloy (permendur), iron nickel alloy (Harmalloy) 4, 8.9 Is a plastic film
such as polyethylene terephthalate resin (generally called Mylar), which has stable mechanical
and chemical properties and is used as a support of diaphragm [1. The support of the diaphragm
of the present invention can be obtained by bonding the diaphragm 7t with the plastic film 8.9
by pinching the diaphragm 7t, heat fusion, solvent fusion, or Fi adhesive. Plastic film and gold,
rattan and 6m! In the case, because it is not originally strong, shooting 1! The conventional film
support with jK plastic film t-laminated has had a problem of weakening of the joint due to
repeated 1-evolution (2) due to pregnancy dynamic pressure during long-term use. i is wrapped
in plastic film or plastic film, and it is strongly bonded in the side 10 between plastic films, so
that the disc and the film damper peel off It is possible to use a diaphragm support with a high
degree of confidence I1 degree.
4, simple explanation of all # i The first cause is the 倶 iii figure of the conventional
electromagnetic converter, Figure 2 is the plane layer of the diaphragm support of the present
invention, and Figure 5 is its m-section 3-view is there. DESCRIPTION OF SYMBOLS 1 ...
diaphragm, 2 ... support plate, 5 ... permanent magnet, 4 ... coil, 5 ... iron core, 6 ... center pole, 7 ...
vibration rod, 8.9 ... plastic film, 10. ...,-Bonding department attorney patent attorney Masanobu
Shibasaki 4-4 'pa 2 · 2! Evening, 1 Nit j 7 / / ˜-\, \ (· 'fork 2) Fang 3 Figure = = ≠ = 7 proxy J,
patent 1. Shinobu Shinshin
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